We found the following within your xlsform (which should be causing this):
In the survey tab of your xlsform:
In the choices tab of your xlsform:
That is if you look at the name column, you will see spaces (which KoBoToolbox does not typically support).
As a workaround, i would advise you to edit your data-set manually after downloading the data from the KoBoToolbox server. Doing so should not affect your survey project in the KoBoToolbox server.
FYI, the developers have already lodged this issue in the GitHub here and it should take some time to get resolved.
Thank you for your kind understanding and patience.
Hey @Kal_Lam, if I understood correctly your developers are currently working on supporting the spaces? And in the meantime as a workaround we need to remove the spaces from the names?
The developers are trying to fix this issue (i.e. not supporting space under the name column that has happened accidentally with your case) so that this type of issue does not occur in the upcoming days (with other users)!
As a workaround, instead of using the DATA>Table>Edit to Edit your data, try downloading your data-set (once data collection has been completed) and then Edit what should be edited within your data-set (Excel version).